*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
:root {
  --oscuro: #1f2326;
  --medio: #4b5258;
  --claro: #8a9198;
  --acento: #b4bac0;
  --azul: #1a56db;
  --azul-claro: #3b82f6;
  --gray-50: #f7f7f8;
  --gray-200: #e4e5e7;
  --gray-500: #6b6f76;
  --gray-600: #4b4f55;
  --gray-800: #232629;
}
body {
  font-family: "Manrope", sans-serif;
  min-height: 100vh;
  display: flex;
  background: var(--gray-50);
  overflow: hidden;
}
.left-panel {
  width: 55%;
  background:
    linear-gradient(
      145deg,
      rgba(31, 35, 38, 0.88) 0%,
      rgba(55, 60, 65, 0.82) 50%,
      rgba(26, 86, 219, 0.62) 100%
    ),
    url("../assets/bg-operaciones.jpg") center/cover no-repeat;
  /* Convierte cualquier foto a escala de grises. */
  background-color: #6b6f76;
  background-blend-mode: normal, luminosity;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 60px;
  position: relative;
  overflow: hidden;
}
.left-panel::before {
  content: "";
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, 0.07);
  top: -150px;
  left: -150px;
}
.left-panel::after {
  content: "";
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, 0.12);
  bottom: -100px;
  right: -100px;
}
.fc {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  animation: float 6s ease-in-out infinite;
}
.fc1 {
  width: 200px;
  height: 200px;
  top: 10%;
  right: 8%;
}
.fc2 {
  width: 120px;
  height: 120px;
  bottom: 20%;
  left: 5%;
  animation-delay: 2s;
}
.fc3 {
  width: 60px;
  height: 60px;
  top: 50%;
  right: 20%;
  animation-delay: 4s;
}
@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}
.brand {
  position: relative;
  z-index: 2;
  text-align: center;
  animation: fadeUp 0.8s ease forwards;
}
.brand-logo {
  width: 240px;
  margin: 0 auto 20px;
  background: #fff;
  border-radius: 16px;
  padding: 16px 20px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}
.brand-logo img {
  width: 100%;
  height: auto;
  display: block;
}
.divider {
  width: 50px;
  height: 2px;
  background: var(--azul-claro);
  margin: 16px auto;
  border-radius: 2px;
}
.brand p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}
.right-panel {
  width: 45%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 50px;
  background: #fff;
  position: relative;
}
.right-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--acento), var(--azul));
}
.login-box {
  width: 100%;
  max-width: 380px;
  animation: fadeUp 0.6s 0.1s ease forwards;
  opacity: 0;
}
.login-box h1 {
  font-family: "Manrope", sans-serif;
  font-size: 28px;
  font-weight: 800;
  color: var(--gray-800);
  margin-bottom: 6px;
  letter-spacing: -1px;
}
.subtitle {
  color: var(--gray-500);
  font-size: 14px;
  margin-bottom: 32px;
}
.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-600);
  margin-bottom: 7px;
}
.form-group input {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--gray-200);
  border-radius: 12px;
  font:
    14px "Manrope",
    sans-serif;
  color: var(--gray-800);
  background: var(--gray-50);
  outline: none;
  transition: all 0.2s;
}
.form-group input:focus {
  border-color: var(--azul-claro);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.12);
}
.login-btn {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--oscuro) 0%, var(--azul) 100%);
  border: 0;
  border-radius: 12px;
  color: #fff;
  font:
    600 15px "Manrope",
    sans-serif;
  cursor: pointer;
  transition: all 0.2s;
  display: block;
  text-align: center;
  text-decoration: none;
}
.login-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(26, 86, 219, 0.35);
}
.login-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}
.error-msg {
  display: none;
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #dc2626;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 13px;
  margin-bottom: 16px;
}
.error-msg.show {
  display: block;
  animation: shake 0.3s ease;
}
.ayuda {
  color: var(--gray-500);
  font-size: 12px;
  margin-top: 16px;
  text-align: center;
}
@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-6px);
  }
  75% {
    transform: translateX(6px);
  }
}
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@media (max-width: 768px) {
  body {
    flex-direction: column;
    overflow: auto;
  }
  .left-panel {
    width: 100%;
    padding: 40px 24px;
  }
  .right-panel {
    width: 100%;
    padding: 36px 24px;
  }
  .right-panel::before {
    width: 100%;
    height: 4px;
    background: linear-gradient(to right, var(--acento), var(--azul));
  }
}
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
  .login-box {
    opacity: 1;
  }
}

/* Recuperar contraseña */
.forgot {
  display: block;
  margin: 7px 0 0 auto;
  background: none;
  border: 0;
  padding: 0;
  font:
    500 12px "Manrope",
    sans-serif;
  color: var(--azul);
  cursor: pointer;
}
.recuperar {
  margin: auto;
  width: min(400px, calc(100vw - 32px));
  border: 0;
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
}
.recuperar::backdrop {
  background: rgba(31, 35, 38, 0.55);
}
.recuperar h2 {
  font-family: "Manrope", sans-serif;
  font-size: 20px;
  font-weight: 800;
  color: var(--gray-800);
  margin-bottom: 6px;
}
.recuperar .subtitle {
  margin-bottom: 20px;
}
.ok-msg {
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #047857;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 13px;
}
.cerrar {
  display: block;
  margin: 14px auto 0;
  background: none;
  border: 0;
  font:
    500 13px "Manrope",
    sans-serif;
  color: var(--gray-500);
  cursor: pointer;
}
.aviso-msg {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #dc2626;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 13px;
  margin-top: 14px;
}

/* Ojo para ver la contraseña */
.con-ojo {
  position: relative;
}
.con-ojo input {
  padding-right: 46px;
}
.ojo {
  position: absolute;
  top: 50%;
  right: 8px;
  transform: translateY(-50%);
  display: flex;
  padding: 6px;
  background: none;
  border: 0;
  border-radius: 6px;
  color: var(--gray-500);
  cursor: pointer;
}
.ojo:hover {
  color: var(--azul);
}